Oh. Adekan is an art exhibition. I'm not even fully aware there's a plot going on it's just beautiful to look at. Not the guys I mean, no homo, but the detail to the background. (sorry i don't know how to minimise these images, new here)

Shokugeki no Soma is one of the more modern well-drawn ones. What's even more amazing is the male protagonist doesn't have medium length hair. Wow!
And it's cooking too, nothing like good art-style to get you hungry.

EXACTLY, also, when speaking in terms of "well drawn" almost all manga is rather lacking.... though certain mangas are more "successful" in their appearance. Since manga is based on an over-stylization of a typical comic book, something that is represented crudely could come off as a much better drawing style due to the artist's ownership of their particular style, I.E. your example of FLCL, though it may come off as crude in certain aspects, its very successful in that its a new, unique, and widely unused style in manga. Very observant comment!

The most well drawn manga I've ever read was no doubt Vagabond by Takehiko Inoue. His art is just amazing! He's won a bunch of awards and painted murals and things too. Definitely one everyone should give a chance.